Stars other than our sun normally appear featureless when viewed through telescopes. Yet astronomers can readily use
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Stars other than our sun normally appear featureless when viewed through telescopes. Yet astronomers can readily use the light from these stars to determine that they are rotating and even measure the speed of their surface. How do you think they can do this?
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One edge of the star is rotating away from us and th...View the full answer
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Related Book For 
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
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